纪录片《我们的地球》 第67期 洞穴迷宫(06)

The droppings also support other types of cockroaches¹,

粪便也能养活其它种类的蟑螂

which spend part of their day resting on cave walls.

它们一天大部分时间都呆在洞壁上

These in turn become food for giant cave centipedes, some more than 20 centimetres long.

这些蟑螂也接连成为了洞穴大蚰蜒的美餐，有的蚰蜒能长到20厘米长。

Bizarrely, there are crabs² here, too. Sifting³ through the droppings for nutrients⁴.

奇怪的是，这里甚至还有螃蟹，它们从粪便中过滤营养物质。

All these animals spend their entire lives within the cave.

所有这些动物都在洞穴内度过一生

They're totally dependent on the digested remains⁵ of food that's brought in from outside.

它们完全依赖的食物消化残渣都是来自于外界

Each evening, in just two hours, three million bats leave the safety of the cave

每天傍晚，只是前后2小时内，300万只蝙蝠一起离开安全的洞穴。

to hunt for insects in the forest outside. But not all will return.

在森林外围捕食昆虫。但并非所有的蝙蝠都能返回。

As they leave the cave, the stream of bats form a doughnut-shaped ring.

蝙蝠离开山洞后，即在空中组成一个面包圈一样的队列。

The wheeling bats seem to confuse a rufous-bellied eagle,

旋绕的蝙蝠群似乎已将棕腹隼雕弄得晕头转向

but they must still survive the attacks of other, more specialised birds of prey⁶.

但它们仍须躲过其它更专业的猛禽的攻击。

1 cockroaches   

n.蟑螂( cockroach的名词复数 )

参考例句：

• At night, the cockroaches filled the house with their rustlings. 夜里，屋里尽是蟑螂窸窸瑟瑟的声音。 来自辞典例句
• It loves cockroaches, and can keep a house clear of these hated insects. 它们好食蟑螂，可以使住宅免除这些讨厌昆虫的骚扰。 来自百科语句

2 crabs   

n.蟹( crab的名词复数 )；阴虱寄生病；蟹肉v.捕蟹( crab的第三人称单数 )

参考例句：

• As we walked along the seashore we saw lots of tiny crabs. 我们在海岸上散步时看到很多小蟹。 来自《简明英汉词典》
• The fish and crabs scavenge for decaying tissue. 鱼和蟹搜寻腐烂的组织为食。 来自《简明英汉词典》

3 sifting   

n.筛，过滤v.筛( sift的现在分词 )；筛滤；细查；详审

参考例句：

• He lay on the beach, sifting the sand through his fingers. 他躺在沙滩上用手筛砂子玩。 来自《简明英汉词典》
• I was sifting the cinders when she came in. 她进来时，我正在筛煤渣。 来自辞典例句

4 nutrients   

n.（食品或化学品）营养物，营养品( nutrient的名词复数 )

参考例句：

• a lack of essential nutrients 基本营养的缺乏
• Nutrients are absorbed into the bloodstream. 营养素被吸收进血液。 来自《简明英汉词典》

5 remains   

n.剩余物，残留物；遗体，遗迹

参考例句：

• He ate the remains of food hungrily.他狼吞虎咽地吃剩余的食物。
• The remains of the meal were fed to the dog.残羹剩饭喂狗了。

6 prey   

n.被掠食者，牺牲者，掠食；v.捕食，掠夺，折磨

参考例句：

• Stronger animals prey on weaker ones.弱肉强食。
• The lion was hunting for its prey.狮子在寻找猎物。